#include <iostream>
#include <windows.h>
#include <math.h>

using namespace std;

int main()
{
	int n;
	cout<< "Vvedite 4-znach chislo: ";
	cin>> n;
	if (n%2==0){
		cout<< "Chislo chetnoe: DA" <<endl;
	}
	else {
		cout<< "Chislo chetnoe: NET" <<endl;
	} 
	if (n%3==0){
		cout<< "Chislo kratno 3: DA" << endl;
	}
	else{
		cout<< "Chislo kratno 3: NET" <<endl;
	}
	unsigned number;
	unsigned sqr = 0;
	
	cout << "Enter number: ";
	cin >> number;
	
	for (unsigned i = 1; sqr + 2<= number; i += 2)
	       sqr += i;
	std::cout << (number == sqr || number== 1 ? "Yes" : "No") << std::endl;
	return 0;
}
